Warner Full Flex Applies To Blades Which Were Hollow-Ground Thinner For Optimum Flexibility. They Are Designed For Lighter Compounds. Best Choice For Final Or Finish-Coat Applications. Ergonomic Care For Is Wider And Flatter, Designed To Suit The Hand To Be Used As A Spreading Tool And To Scale Back Fatigue. Design Improves Blade Keep An Eye On. Ergonomic, Color-Coded Soft Grip Handles, Top Of The Range Carbon Steel Blades, Large Hang-Hole Size.